I was considering buying a 2002 4 cylinder Accord DX engine and throwing that into my current car 2001 4 cylinder Accord EX. I know that DX and EX are only trim levels and that most likely the engines are mechanically the same.. however I wanted to make sure this was a straight Plug and Play swap.

Will there be any problems with this swap? I live in CA and my engine code is F23A4 (ULEV) which I believe has some slight differences to the wiring harness or sensors or something... If I put in the new 2002 F23A* DX engine will I have any problems with the wiring harness and my current ECU?